Instruction Manual

TNETX4090
ThunderSWITCH II

9-PORT 100-/1000-MBIT/S ETHERNET

SWITCH
SPWS044E – DECEMBER 1997 – REVISED AUGUST 1999
74
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
20%
80% 80%
20%
47% 47%
t
f
t
r
V
DD
0
Input
47%
t
PLH
V
OH
V
OL
In-Phase
Output
t
PHL
47%
47%
V
OH
V
OL
Out-of-Phase
Output
t
PHL
47%
t
PHL
Figure 33. Internal Push/Pull Output Propagation-Delay-Time Voltage Waveforms
20%
80% 80%
20%
47% 47%
t
f
t
r
V
DD
0
CMOS-Level
Input
CMOS t
PLH
V
OH
V
OL
LVCMOS/TTL
Output
CMOS t
PHL
1.3 V
50%
1.3 V
50%
TTL t
PLH
TTL t
PHL
Figure 34. TTL Output Macro Propagation-Delay-Time Voltage Waveforms